When the information you want to share with other project members does not fit
neatly into a tracker comment or a document review, use a Wiki page for a more free-form
communication flow.
After a Wiki is created, any user with the Wiki create, edit, or view
permission can add or edit Wiki content. You can also add associations or multiple
attachments, or create additional Wiki pages.
Note: You can now add multiple attachments in a Wiki page without updating the
Wiki each time to include another attachment. If attachments are not required
they can be deleted before updating the Wiki page.